钠metabisulfite

sodium metabisulfite 1==Sodium Metabisulphite For Food Use Molecular Formula:Na2S2O5 Molecule Weight:190.10 Appearance:White or light yellow crystalline powder Quality standard: GB1893-86 CAS 7681-57-4 Test ItemStandard Request.Results of TestIndividual ResultAppearance White or light yellowcrystalline powderMeet the demandPassContent(Na2S2O5%)≥95%97.26%PassSO2%≥65%65.55%PassFe%≤0.005%0.003%PassInsoluble substancein water%≤0.05%0.01%PassHeavy metal (Pb)%≤0.002%0.001%PassAs%≤0.0002%0.0001%PassPH4.0-4.64.3PassMain uses: Bleach agent (e.g.candies, cake, bamboo shoots, etc); Loose agent (e.g.bread, cracker etc); Antiseptic and germicide (e.g.fruit juice, tinned food ,brews, the cereals food is defended storage etc); Inhibitor and freshen agent (e.g.day lily, seafood, fruit and vegetable etc)Packaging:in polythene plastic bag with a polypropylene overbag, paper-plastic composite bag, kraft bag, etc.Netweight:25,50,1000kilograms per bag or following your demand.2==Sodium Metabisulphite For Industrial UseMolecular Formula:Na2S2O5 Molecule Weight:190.10 Appearance:white or light yellow crystalline powder. Quality standard:HG/T28261997 CAS 7681-57-4 Test ItemStandard Request.Results of TestIndividual ResultAppearance White or light yellowcrystalline powderMeet the demandPassContent(Na2S2O5%)≥95%97.26%PassSO2%65%65.55%PassFe%≤0.005%0.003%PassInsoluble substancein water%≤0.05%0.01%PassHeavy metal (Pb)%≤0.002%0.001%PassAs%≤0.0002%<0.0001%PassPH4.0-4.64.3PassMain uses: Mordant of printing and dyeing; Dechlorinate of textile after bleaching; Sulphonated agent and reducer of chemical industry and pharmacy; Bleach of paper pulp, bamboo and timber bleach of stapk; Treatment agent of waste water; Rubber solidifying agent Perfume industry is served as hydrocarbon perfume aldehyde; The hide profession employ to do to molt dose and pliable dose and wearproof dose ; The sensitize industry is served as the developing agent reductant and the protection of fixing bath dose and so on; sewage treatment. etc Packing: in polythene plastic bag with a polypropylene overbag, paper-plastic composite bag, kraft bag, etc. Net weght: 25,50,1000 kilograms per bag or following your demand. We welcome your orders for bromide products, magnesium chloride, industrial crude salt and bittern serial chemicals.